Efficient Sparse Coding using Hierarchical Riemannian Pursuit.
Ye XueVincent LauSongfu CaiPublished in: CoRR (2021)
Keyphrases
- sparse coding
- dictionary learning
- sparse representation
- unsupervised learning
- linear combination
- image classification
- natural images
- image representation
- generative model
- sparse codes
- data sets
- denoising
- active learning
- high dimensional
- visual words
- image patches
- feature space
- pattern recognition
- reinforcement learning